SIST EN 13160-1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Leckanzeigesysteme - Teil 1: Allgemeine GrundsätzeSystemes de détection de fuites - Partie 1: Principes générauxLeak detection systems - Part 1: General principles23.020.01Fluid storage devices in generalICS:Ta slovenski standard je istoveten z:EN 13160-1:2003SIST EN 13160-1:2003en01-december-2003SIST EN 13160-1:2003SLOVENSKI
STANDARD



SIST EN 13160-1:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13160-1May 2003ICS 23.020.01; 23.040.99; 29.260.20English versionLeak detection systems - Part 1: General principlesSystèmes de détection de fuites - Partie 1: PrincipesgénérauxLeckanzeigesysteme - Teil 1: Allgemeine GrundsätzeThis European Standard was approved by CEN on 10 March 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13160-1:2003 ESIST EN 13160-1:2003



EN 13160-1:2003 (E)2ContentspageForeword.31Scope.32Normative references.33Classes of leak detection systems.44Terms and definitions.55Requirements.75.1General.75.2Avoidance or reduction of ignition sources.85.3Leak indicating device.85.4Function test of the audible alarm transmitter.95.5Device categories for explosion-proof parts of the leak detection system.95.6Inspection of equipment.95.7Instruction.96Marking.107System of evaluation of conformity.10Annex A (informative)
Examples of leak detection systems.11Annex B (informative)
Equipment categories for explosion-proof parts of the leak detection systems.17Annex C (normative)
Evaluation of conformity.18Annex D (informative)
Third party certification of quality control.26Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EUConstruction Products Directives (89/106/EEC).27Annex ZB (informative)
Clauses of this European Standard relevant to fulfil essential requirements orother provisions of EU-Directives.31Bibliography.35SIST EN 13160-1:2003



EN 13160-1:2003 (E)3ForewordThis document (EN 13160-1:2003) has been prepared by Technical Committee CEN /TC 221, "Shop fabricatedmetallic tanks and equipment for storage tanks and for service stations" the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by November 2003, and conflicting national standards shall be withdrawn at the latestby February 2005.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with the Construction Products Directive (89/106/EEC) see informative Annex ZA, which is anintegral part of this document. For relationship with other EU Directives see informative Annex ZB.Annexes A, B, and D are informative. Annex C is normative.This document includes a Bibliography.This European Standard consists of 7 parts:Leak detection systems;Part 1:General principlesPart 2:Pressure and vacuum systemsPart 3:Liquid systems for tanksPart 4:Liquid and/or vapour sensor systems for use in leakage containments or interstitial spacesPart 5:Tank gauge leak detection systemsPart 6:Sensors in monitoring wellsPart 7:General requirements and test methods for interstitial spaces, leak protecting linings and leakprotecting jacketsAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.1 ScopeThis European Standard specifies the general principles for leak detection systems for use with double-skin tanks,single-skin tanks and pipework designed for water polluting fluids.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanSIST EN 13160-1:2003



EN 13160-1:2003 (E)4Standard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 13160-2:2003, Leak detection systems — Part 2: Pressure and vacuum systems.EN 13160-3:2003, Leak detection systems — Part 3: Liquid systems for tanks.EN 13160-4:2003, Leak detection systems — Part 4: Liquid and/or vapour sensor systems for use in leakagecontainments or interstitial spaces.prEN 13160-5:1998, Leak detection systems — Part 5 : Tank gauge leak detection systems.EN 13160-6:2003, Leak detection systems — Part 6 : Sensors in monitoring wells.EN 13160-7:2003, Leak detection systems — Part 7: General requirements and test methods for interstitial spaces,leak protecting linings and leak protecting jackets.EN 13352, Specification for the performance of automatic tank contents gauges.EN 13463-1:2001, Non-electrical equipment intended for use in potentially explosive atmospheres — Part 1: Basicmethod and requirements.EN 50014, Electrical apparatus for potentially explosive atmospheres – General requirements.EN 50015, Electrical apparatus for potentially explosive atmospheres – Oil immersion "o".EN 50016, Electrical apparatus for potentially explosive atmospheres – Pressurized apparatus "p".EN 50017, Electrical apparatus for potentially explosive atmospheres – Powder filling "q".EN 50018, Electrical apparatus for potentially explosive atmospheres – Flameproof enclosures "d".EN 50019, Electrical apparatus for potentially explosive atmospheres – Increased safety "e".EN 50020, Electrical apparatus for potentially explosive atmospheres – Intrinsic safety "i".EN 50028, Electrical apparatus for potentially explosive atmospheres – Encapsulation m.EN 50039, Electrical apparatus for potentially explosive atmospheres – Intrinsic safety “i” systems.EN 60073, Basic and safety principles for man-machine interface, marking and identification - Coding principles forindicators and actuators (IEC 60073:1996).EN 60335–1, Household and similar electrical appliances – Safety - — Part 1 : General requirements (IEC 60335-1:2001, modified).EN 60529, Degrees of protection provided by enclosures (IP-code) (IEC 60529:1989).EN 60730–1, Automatic electrical controls for household and similar use — Part 1 : General requirements (IEC60730-1:1999, modified).EN 61010–1, Safety requirements for electrical equipment for measurement, control and laboratory use —Part 1: General requirements (IEC 61010-1:2001).ISO 2859–1, Sampling procedures for inspection by attributes — Part 1 : Sampling schemes indexed byacceptance quality limit (AQL) for lot-by lot inspection.3 Classes of leak detection systemsFor the purpose of this standard the following classes apply in order of protection for the level of safety orenvironmental protection required:SIST EN 13160-1:2003



EN 13160-1:2003 (E)5Class I:Systems of this class will detect a leak above or below the liquid level in a double-skin system. Theyare inherently safe and will detect a leak before any liquid can enter the environment (i. e. pressure orvacuum systems).Class II:Systems of this class will detect a leak above or below the liquid level in a double-skin system withthe possibility of the leak detection liquid leaking into the environment (i. e. liquid monitoring system).Class III:Systems of this class will detect a leak below the liquid level in a tank or in a pipework system. Thesesystems are based on liquid and/or vapour sensors located in leakage containment or interstitialspace. A possibility exists of product entering the environment.Class IV:Systems of this class will detect, to specific levels of probability, specified rates of change of tankcontents (i. e. leakages into or out of the tank). A strong possibility exists that product will enter theenvironment in the event of a leak.Class IV A:Dynamic leak detection systems will by reconciliation also indicate leaks in the connected pipeworkClass IV B:Static tank gauge leak detection systems or statistical quiet period leak detection systems will onlyindicate leaks from a tank.Class V:Systems of this class may detect liquid loss in tanks or pipes below the liquid level. Product will enterthe environment before the leak is detected (i. e. sensors in monitoring wells).For examples for the different classes see annex A.4 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.4.1atmospheric pressure conditionspressures ranging from 0,08 MPa (0,8 bar) to 0,11 MPa (1,1 bar)4.2leak detection systemincludes all equipment required to indicate a leakmain components could include the interstitial space, leak protecting linings, leak protecting jacket, leak indicatingdevice, leak detector, system pipework, leak detecting media, monitoring wells or sensors4.3interstitial spacespace between the walls of double-skin systems. It provides the passage for fluids which may enter the interstitialspace4.4double-skin tanktank constructed with an inner and outer wall with an interstitial space where the maximum filling level of the tankdoes not exceed the height of the interstitial space4.5single-skin tanktank constructed with a single wall4.6leak protecting lininginternal layer which solely or in conjunction with an intermediate material produces a suitable interstitial space4.7leak protecting jacketexternal layer which solely or in conjunction with an intermediate material produces a suitable interstitial spaceSIST EN 13160-1:2003



EN 13160-1:2003 (E)64.8intermediate layermaterial used to separate the inner and outer tank walls, the intermediate layer may or may not be attached toeither one or both walls, it provides separation of the inner and outer walls4.9double-skin pipeworkpipework constructed with an inner and outer wall with an interstitial space4.10single-skin pipeworkpipework constructed with a single wall4.11vacuum leak detectora leak detector for vacuum detects a leak using air as the leak detection medium, with vacuum leak detectors analarm is triggered by rise of pressure in the interstitial space in the event of a leak4.12pressure leak detectora leak detector for pressure detects a leak using air or inert gas as the leak detection medium. With pressure leakdetectors, in the event of a leak, an alarm is triggered by a drop in the pressure within the interstitial space4.13leak detector for liquid systemsindicates a leak using liquid as a leak detection medium, any leak in either of the system walls is indicated by adrop of the leak detection fluid level4.14liquid sensordevice which will detect liquid4.15vapour sensordevice which will detect gas and vapour4.16leak indicating deviceindicates the operational and the alarm status of any connected sensors or leak detectors4.17tank gauge leak detection systema tank gauge system measures the volume of liquid stored in a tank, a loss can be indicated where the volume ofliquid drawn from the tanks is monitored independently from the gauge and reconciled with changes in the storedvolume, a loss can also be indicated by analysis of the changes in "static" liquid volume during periods when noadditions to, or depletions, from the tank are taking place4.17.1static leak detectionwhere a tank integrity test is carried out by the gauge whilst no additions to or depletions from the tank contents arebeing made4.17.2dynamic leak or loss detectionwhere the tank contents gauge forms part of an integrated detection system and is used to detect a leak or lossduring normal operation where additions to or depletion from the tank contents may be made, a loss can bedetected in tanks and pipeworks, connected with the tank, which may indicate a leakSIST EN 13160-1:2003



EN 13160-1:2003 (E)74.17.3statistical quiet period leak detectionwhere the gauge system collects data during intervals (which are shorter than required for static leak detection)between dispensing and delivery operations, the data are then analyzed to determine if a loss has occurred, whichmay indicate a leak4.17.4tank integrity testtest which is capable of detecting a leakage rate in accordance with a given test procedure, the test takes intoaccount the thermal expansion of the liquid being stored, evaporative losses and the effects of any other variablesincluding groundwater level4.18monitoring wellswells installed into the ground around a storage system, positioned to ensure that any liquid or vapour from aleakage from the system will reach one of themthe monitoring well is used to ensure that the leakage can be detected visually or by sensors4.19leakage containmentsystem, which is designed to prevent leakage from a primary system entering the environment and which enablesthe detection of leakage4.20frost protected areaarea where the temperature will not go below 0 C4.21stop valvevalve used to prevent the passage of liquid beyond a fixed point in a connecting line4.22sensor systemarrangement whereby liquid and/or vapour sensors are used in leakage containments or interstitial spaces and aremonitored by a leak indicating device for the purpose of detecting leaks5 Requirements5.1 GeneralLeak detection systems shall trigger the alarm in the event of a leak or in the event of malfunctions of the leakdetection system. All leak detection systems shall indicate every leak by a visual and audible alarm.In the event of a power interruption, the leak detection system shall be designed to resume normal operation on therestoration of the power supply.Leak detection systems shall be designed for operation under atmospheric conditions according to 4.1.The components of a leak detection system intended for installation in the open air shall be suitable to operate in atemperature range of -20 C to +60 C or –40 °C to +40 °C.Components of a leak detection system intended for installation in frost-protected area shall be suitable to operatein a temperature range of -5 C to +50 C.Components of a leak detection system intended for installation in underground tanks shall be suitable to operatein a temperature range of -5 C to +30 C.SIST EN 13160-1:2003



EN 13160-1:2003 (E)8Leak detection systems and/or their components intended for installation in a potentially explosive atmosphereshall be explosion protected. If there exists the possibility of an explosive atmosphere being present within the leakdetection system and/or its components these shall be explosion protected.The leak detection systems shall be designed for installation in such a way to prevent accidental disconnection ofthe equipment's power supply. Plug and socket connections or switches are only permitted if their interruptiontriggers off an alarm.The leak detection system shall be capable of being tested or capable of simulating a leak condition.Disconnections of any sensor or transducer or a short circuit in connecting cables shall result in an alarm condition.All indications and sounders shall be capable of being tested.The leak detection systems shall be designed so that correct operation can be verified.The leak detection systems shall be used and maintained in accordance with the manufacturer's instruction.If a leak detector serves more than one tank or pipework equipment is required which shows or allows to test in anevent of an alarm which tank or pipework leaks.5.2 Avoidance or reduction of ignition sources5.2.1General requirementsAll electrical and non-electrical equipment and components, intended for use in potentially explosive atmospheres,shall be designed and constructed according to good engineering practice and in conformity with the requiredcategories for group II equipment to ensure avoidance of any ignition source. To classify the category of theequipment it shall be subjected to an ignition hazard assessment in accordance with 5.2 of EN 13463-1:2001.The suitable category for the explosion protected equipment parts, for use in certain areas of the leak detectionsystems, are detailed in annex B.5.2.2Electrical equipment for leak detection systems5.2.2.1GeneralAny electrical equipment, which is intended for use in or which may be exposed to potentially explosiveatmospheres, shall comply with the requirements according to EN 50014 to EN 50020, EN 50028 or EN 50039 asappropriate, or any other means of protection. All electrical equipment shall comply with the requirementsaccording to EN 60073, EN 60335-1, EN 60730-1 and EN 61010-1 and shall fulfil minimum IP 30 according toEN 60529.The electrical equipment shall be protected from any external influences such that it will withstand the temperature,chemical and mechanical impact that are to be expected on site.5.2.2.2Inspection of the electrical equipmentElectrical equipment shall be inspected visually to confirm that it is constructed in accordance with the electricaldiagrams and certificates of conformity provided by the manufacturer.5.2.3Non electrical equipment for leak detection systemsNon electrical equipment, intended for use in potentially explosive atmospheres, shall comply with the requirementsof EN 13463-1 and, where relevant, the European standard for the specific type of ignition protection selected.Non electrical equipment shall be protected from any external influence such that it will withstand the temperature,chemical and mechanical impact that are to be expected on site.5.3 Leak indicating deviceThe operating condition shall be clearly indicated, i. e. by a "green" light.SIST EN 13160-1:2003



EN 13160-1:2003 (E)9The visual alarm shall be clearly indicated, i. e. by a "red" light.It shall be impossible to switch off the visual alarm while the system is powered on and an alarm condition exists.The audible alarm shall be suitable for continuous operation and shall be designed for muting.All leak indicating devices shall be designed for connecting an additional alarm. The output parameter shall bestated.All indicators shall be equipped with a device for testing the operating condition of the alarm.5.4 Function test of the audible alarm transmitter5.4.1Test objectiveThe test objective is to ensure that the alarm is loud enough to be heard and that the volume level is maintained fora minimum period of 36 h.5.4.2PreparationFor the purpose of this test the leak detector with the signal device shall be mounted with the fastening devicesupplied by the manufacturer to a solid and reverberant wall. A wall is considered solid if a section of the wallhaving a surface area of 1 m2 weighs at least 200 kg and reverberant if it has an absorption coefficient for sound ofs
0,05.5.4.3EvaluationThe test will be deemed to have been passed if the measured value for the continuous sound level is
70 dB (A)after the fatigue test.5.4.4Test methodThe audible signal device shall be sounded continuously for at least 36 h in a fatigue test. On completion of thefatigue test the sound level shall be measured by a continuous signal. The arithmetic mean shall be taken from atleast three measuring points.These measuring points shall be located approximately equidistant on a hemisphere extending over the leakdetector front. The radius of the hemisphere shall be r = 1 m. The outer measuring points are to be chosen suchthat the radius describes an angle of 45 ° referred to the leak detector or indicator front at these points.5.5 Device categories for explosion-proof parts of the leak detection systemSee annex B.5.6 Inspection of equipmentThe user shall ensure before use of the equipment that, the electrical equipment and the system shall be suitable for its application in a hazardous areaand the equipment has been installed in accordance with the manufacturer's instructions.5.7 InstructionAll leak detection systems shall be accompanied by instruction as to: safe installation, use and maintenance;SIST EN 13160-1:2003



EN 13160-1:2003 (E)10 assessment of safe operation condition and possible misuse; limitation of equipment, e.g. temperature, pressure regulation; essential characteristic of tools used; training needed for safe use of equipment. The standards for which the system has been tested e. g. for electromagnetic compatibility (EMC) complianceor low voltage directive.6 MarkingThe following information shall be marked on the product: Manufacturer; Year of production; Identification number; Class number and EN – number; Temperature range; Identification symbol or number of the certified body, if relevantWhere ZA.3 covers the same information as this clause, requirements of this clause are met.7 System of evaluation of conformityAccording to annex C.SIST EN 13160-1:2003



EN 13160-1:2003 (E)11Annex A(informative)Examples of leak detection systemsA.1Leak detection systems – class IKey1 Pressure line2 Measuring line3 Leak detector4 Measuring device for pressure5 Alarm (visual and audible)Figure A.1 — Pressure systems with integrated pressure generator for tanksKey1 Stop valve2 Suction line3 Leak detector4 Measuring device for pressure5 Alarm (visual and audible)6 Measuring line7 Exhausting lineFigure A.2 — Vacuum systems with integrated vacuum generator for tanksSIST EN 13160-1:2003



EN 13160-1:2003 (E)12Key1 Measuring device for pressure2 Leak detector3 Alarm (visual and audible)4 Test valveFigure A.3 — Vacuum systems without integrated vacuum generator for tanksKey1 Test coupling2 Pressure leak detector3 Alarm (visual and audible)4 Pressure reducer5 Nitrogen bottle6 Test valve7 Double-skin pipework8 Pressure lineFigure A.4 — Pressure system with integrated pressure generatorSIST EN 13160-1:2003



EN 13160-1:2003 (E)13Key1 Test coupling2 Pressure leak detector3 Alarm (visual and audible)4 Pressure reducer5 Nitrogen bottle(remove after first filling)6 Test valve7 Double-skin pipework8 Pressure lineFigure A.5 — Pressure system without integrated pressure generator for pipeworkKey1 Stop valve2 Vacuum leak detector3 Alarm (visual and audible)4 Three way valve5 Exhausting line6 Measuring line7 Test valve8 Double-skin pipework9 Suction lineFigure A.6 — Vacuum system with integrated vacuum generator for pipeworkSIST EN 13160-1:2003



EN 13160-1:2003 (E)14A.2Leak detection systems – class IIKey1 Leak detection liquid tank2 Liquid sensor3 Leak indicating device4 Alarm (visual and audible)5 Test valve6 Interstitial space with leak detection liquidFigure A.7 — Liquid system for tanks or pipes (shown is a tank)A.3Leak detection systems – class IIIKey1 Leak indicating device2 Alarm (visual and audible)3 SensorFigure A.8 — Liquid and vapour sensor system for use in an interstitial spaceSIST EN 13160-1:2003



EN 13160-1:2003 (E)15Key1 Filling line2 Protecting pipe3 Leak indicating device4 Alarm (visual and audible)5 Leakage containment6 SensorFigure A.9 — Liquid and vapour sensor system for use in a leakage containmentA.4Leak detection systems – class IVKey1 Indicator for dispensed volume2 Data line3 Tank gauge processor4 Alarm (visual and audible)5 Tank gaugeFigure A.10 — Tank gauge leak detection system – Category ASIST EN 13160-1:2003



EN 13160-1:2003 (E)16Key1 Indicator for dispensed volume2 Data line3 Tank gauge processor4 Alarm (visual and audible)5 Tank gaugeFigure A.11 — Tank gauge leak detection system – Category BA.5Leak detection system – class VKey1 Leak indicating device2 Alarm (visual and audible)3 Monitoring well4 SensorFigure A.12 — Sensors in monitoring wellsSIST EN 13160-1:2003



EN 13160-1:2003 (E)17Annex B(informative)Equipment categories for explosion-proof parts of the leak detectionsystemsLeak detection systems or their components can be installed in different hazardous areas (zones) or also in non-hazardous areas. EN 1127-1 specifies methods for the identification of hazardous situations leading to explosionand the design and construction measures appropriate for the required safety. The definition of zones andcategories and the relation between categories and zones are detailed in this standard. It is the responsibility of theuser to choose the suitable category of the equipment for installation in a particular zone.If the stored product is a liquid with a flash point below 55 C, equipment installed in certain locations will conformto one of the categories of equipment defined in EN 1127-1. Table B.1 shows the equipment categories whichtypically will be used in certain areas of the system. However, these categories can be varied where prevailingregulations or other constraints apply.NOTE 1For equipment outside the interstitial space reduced requirements could apply, see Table B.1.NOTE 2If the interstitial space and/or components of the leak detection system are not chemically resistant to any liquidswith which they can come into contact, there can be a risk of the generation of an explosive atmosphere.Regardless of these proposals the requirements arising from the potentially explosive atmospheres at the place ofinstallation should apply.Table B.1 — Equipment categoriesDefinition of system areasEquipmentcategoryInner part of the tank1Monitoring well2monitoring medium air1monitoringmediumwith securedrecharging facilityno requirementsinner wall withpermeation by the storedproductinert gaswithout securedrecharging facility2 or 3vacuum1 or 2pressure without securedrecharging facility2monitoringmediumairPressure with securedrecharging facility3with secured rechargingfacilityno requirementsInterstitial spaceinner wall withoutpermeation by the storedproductmonitoringmediuminert gaswithout securedrecharging facilityno requirementsSIST EN 13160-1:2003



EN 13160-1:2003 (E)18Annex C(normative)Evaluation of conformityC.1GeneralThis annex specifies procedures and requirements for the evaluation of conformity for leak detection systems.The purpose is the evaluation of conformity of the leak detection systems on the basis of initial type-testing of the product
factory production control.Initial type testing shall be performed on first application of this standard. Tests previously performed in accordancewith the provisions of this standard (same product, same characteristic(s), test method, sampling procedure,system of attestation of conformity, et
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